717116285 has 8 divisors (see below), whose sum is σ = 860683320. Its totient is φ = 573597184.

The previous prime is 717116251. The next prime is 717116291. The reversal of 717116285 is 582611717.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1125721 + 715990564 = 1061^2 + 26758^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 717116285 - 2¹⁰ = 717115261 is a prime.

It is a super-3 number, since 3×717116285³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52001 + ... + 64329.

It is an arithmetic number, because the mean of its divisors is an integer number (107585415).

Almost surely, 2^717116285 is an apocalyptic number.

It is an amenable number.

717116285 is a deficient number, since it is larger than the sum of its proper divisors (143567035).

717116285 is a wasteful number, since it uses less digits than its factorization.

717116285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23967.

The product of its digits is 23520, while the sum is 38.

The square root of 717116285 is about 26779.0269614114. The cubic root of 717116285 is about 895.0827654596.

The spelling of 717116285 in words is "seven hundred seventeen million, one hundred sixteen thousand, two hundred eighty-five".